Aktis Oncology, Inc. - Common Stock Institutional Ownership

13F Institutional Holders and Ownership History

Type / Class
Equity / Common Stock
Shares outstanding
53,432,253

Significant Owners of Aktis Oncology, Inc. - Common Stock based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VV Manager II, LLC 11% 5,831,315 Helen Kim 12 Jan 2026
EcoR1 Capital, LLC 9.1% 4,862,335 Oleg Nodelman 12 Jan 2026